Abb Schweiz Ag

Antonio Currá

Agostino Butti

Vittorio Cozzi

Luca Ghezzi

An electronic protection device () for a LV electric line () including one or more conductors (P, N), comprising: Said signalling arrangement comprises a first signalling device () adapted to provide light signals (L, L, L) indicative of the operating conditions for said electronic protection device, when said electronic protection device is in a closed state.

Electronic protection device

An electronic protection device for a LV electric line including one or more conductors, comprising: one or more pairs of electric contacts adapted to be electrically connected with corresponding conductors of the electric line, the electric contacts being operatively coupleable or decoupleable from one another; and a control unit adapted to control the operation of the electronic protection device; wherein the control unit includes an electronic arrangement to detect and determine arc fault conditions in the electric line.

An electronic protection device for a LV electric line, the protection device being provided with a control unit comprising a controller including digital data processing resources clocked by a first clock source adapted to provide a first flock signal with a first nominal clock frequency. The control unit comprises a clock testing arrangement adapted to check whether the first clock source is properly operating.

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Abbiategrasso, Italy

Antonio Currá